Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a80e61d5580329d…

MALICIOUS

PDF

42.7 KB Created: 2021-05-10 14:01:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 39169ad4448003596d00417fb5d24d67 SHA-1: 67bacf018671ed09d120bd8b93dc72f4c0b50805 SHA-256: 1a80e61d5580329db28b9c2c33a63bc412e6cab367441c52c9cd3cdb63cafc78
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a common lure, advertising a "game hack" to entice users to click on embedded links. The primary link, https://netcdn.xyz/app/406889139/coin-master-online-hack-no-survey-no-password-game-hack, likely leads to a malicious download or further redirection. The presence of numerous similar URLs suggests a campaign focused on distributing malware through fake game cheats and generators. The ML classifier strongly indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/coin-master-online-hack-no-survey-no-password-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049e1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E1 25228 bytes
SHA-256: f0843f20351fae4cf629b59a12fdce0f98c19bd7557f5f2bf3f6ecb1d2a5125f
font_01_sfnt_off00008324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8324 18716 bytes
SHA-256: 851b55b86fae67a7710f5a0f414e3dc181a06a9a41e12226fd5d3557d65ffbd6

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